Rainbow Waterco Chemflo 25880 User manual

Chemflo 25880 Chemical Feeder
Doses same amount of Acid or Chlorine each day
Chemflo 25880 Acid or Chlorine Feeder Manual
Date : 1 Sep-2007
Version : 1.0
Rainbow Pool Products
PO Box 2388, Mansfield Qld 4122
Telephone STD 61-7-3849 5385
Facsimile STD 61-7-3849 5384
Email: [email protected]
Web: www.rainbowpoolproducts.com.au

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Contents
Section 1. – Introduction............................................................................................................ 4
1.1 Chemflo Diagram ............................................................................................................................ 4
1.2 Unpacking Information .................................................................................................................... 5
Section 2. – Installation.............................................................................................................. 6
2.1 Plan the installation ......................................................................................................................... 6
2.2 Fit Tubing into Chemical Drums ...................................................................................................... 7
2.3 Fit Tubing to Dosing Pump.............................................................................................................. 7
2.4 Mount Feeder and Connect to Electrical Supply ............................................................................. 8
Section 3. – Operating Instructions .......................................................................................... 9
3.1 Setting the Correct Dose Rate ........................................................................................................ 9
3.2 Setting the Chemflo to OFF............................................................................................................. 9
3.3 Setting the Chemflo to FULL ........................................................................................................... 9
3.4 Chemflo Flow Rates...................................................................................................................... 10
Section 4. – Peristaltic Dosing Pump ..................................................................................... 11
4.1 Lubricating the Pump Tubing ........................................................................................................ 11
4.2 Replacing the Pump Tubing .......................................................................................................... 11
Section 5. – Troubleshooting .................................................................................................. 13
Section 6. – Warranty ............................................................................................................... 14

Section 1 – Introduction
4
Section 1. – Introduction
Thank you for purchasing a Chemflo feeder.
The Chemflo dosing unit is designed for maximum reliability to give you many years of service.
The Chemflo is easy to operate. This manual provides all the details required for correct
installation and operation of the unit. If at any stage you require assistance, please contact your
local dealer.
Please note that the Chemflo must be serviced or repaired by authorised personnel only. Opening
the unit by unauthorised persons may cause an electrical shock, resulting in serious injury or
death. If the power lead becomes damaged, the unit must be returned to your dealer or repaired by
an authorised person only.
1.1 Chemflo Diagram
1. Dosing Pump.................... This can be used for either Chlorine or Acid.
2. LED Display ...................... The display provides a visual indication of the dosing rate.
3. Dose Rate Control............ Set the control to add more or less chemical, turn dosing
OFF or allow the pump to operate continuously (eg. for
pool start-up or super-chlorinating).
4. Piggy-back power Plug ... Plug this into a 240V AC power outlet which is controlled
by a timer. The main pool pump then plugs into the piggy-
back plug. This ensures that the Chemflo only adds
chemical when the main pool pump is on.

Section 1 – Introduction
5
1.2 Unpacking Information
Please check that you have received all of the items that should have been included with your new
Chemflo.
Standard Chemflo Kit…
Chemflo Pool Feeder
Model No : 25880 Injection Tee, 50mm
Part No : 117901
50 to 40mm reduction bushes x 2
Part No : NPRB5040
Peristaltic Pump Input and Output
Tube, 4m
Part No : 116360
Drum lid with gland fitting
Part No : 116362 Tube weight for chemical drum
Part No : 116354 Chemflo Handbook
Part No : 130050
Spare Parts, not included in standard kit…
Pump tube assembly, 1.8 L/Hr
Part No : 116353
Pump tube assembly, 6.1 L/Hr
Part No : 116352
Pump Tube Lubricant, 3mL
Part No : 130103

Section 2 – Installation
6
Section 2. – Installation
The Chemflo is supplied with an installation guide. Installers should also refer to this guide.
2.1 Plan the installation
Ensure that…
1. The Chemflo feeder is installed in a sheltered location.
2. The Chemflo controller is close enough to the expected location of the Injection Tee for the
pump output tubing to reach without straining.
3. The maximum suction height from the bottom of the chemical drums to the dosing pump is 2
metres.
4. The mains power leads from the Chemflo and the Pool Pump reach a mains power outlet. If
the controller is mounted in a wet area, a weatherproof power outlet must be used. It is
recommended that you use an earth leakage circuit breaker with this power outlet. Please
consult a qualified electrician if you are not sure if this is fitted.
5. Install the Injection Tee
Install the Injection Tee as per the diagrams below. Use a suitable PVC joining compound. The
Tee is installed in the return line to the pool, as the pressure is lower.

Section 2 – Installation
7
2.2 Fit Tubing into Chemical Drums
Insert the suction tubing
through the chemical
drum lid supplied and fit
the drum weight, as per
the diagram below. Be
sure to use the correct
type of chemical
resistant drum. A pool
professional can advise
on this. For installations
where the lid provided is
not compatible with the
container, drill a 1/2” or
13mm hole into the lid of
the container and fit the
compression fitting. Drill
a second 2mm diameter
vent hole to avoid
suction build-up.
IMPORTANT INFORMATION REGARDING ACID
xAlways use dilute Hydrochloric Acid.
xAdd 5 Litres of Acid to 20 to 25 Litres of water.
xNEVER ADD WATER TO ACID
xUsing concentrated acid may damage your equipment and void the
warranty
2.3 Fit Tubing to Dosing Pump
Insert the suction tubing
from the chemical drum
to the left hand side
compression fitting of the
dosing pump. Screw the
retaining nut into place
firmly, ensuring the tube
is securely anchored.
Repeat for the supply
tubing on the right hand
side of the pump.

Section 2 – Installation
8
2.4 Mount Feeder and Connect to Electrical Supply
Mount the Chemflo controller on a sturdy wall or post using minimum 3mm or 1/8” stainless steel
bolts, screws or masonary anchors.
The Chemflo controller MUST be installed in a sheltered location.
Connect the Chemflo into a suitable power outlet and the Pool Pump into the piggy-back power
plug.
The power outlet should be fitted with an electronic Timer, which will switch the Chemflo and the
main Pool Pump on for the correct amount of time each day.

Section 3 – Operating Instructions
9
Section 3. – Operating Instructions
3.1 Setting the Correct Dose Rate
The Dose Rate can be set from 1 to 99, where 99 is 100% of the unit’s dosing capacity. The Litres
per Hour of this dosing capacity is shown in the table at the end of this section.
Note: The flow rate of the Chemflo is controlled by changing its duty cycle, not by
changing the actual speed of the motor, so for most of the time the pump does not
operate. Please see section 3.4 for a more detailed explanation.
1. For Chlorine dosing on a domestic swimming pool (50,000 litres), we recommend that you
start with a setting of 50 to 80 (small pump tube).
For Acid dosing on a domestic swimming pool (50,000 litres), we recommend that you start
with a setting of 20 (small pump tube).
2. Monitor the Chlorine or pH levels daily for the first week to check the results of the dosing.
For Chlorine Dosing : If the Chlorine level is too high, reduce the Dose Rate setting.
If the Chlorine level is too low, increase the Dose Rate setting.
For Acid Dosing : If the pH is too high, increase the Dose Rate setting.
If the pH is too low, decrease the Dose Rate setting.
3. Continue to monitor the Chlorine and pH levels on a weekly basis to ensure that the water
balance is correct.
It is recommended that you take a sample of your pool water to a pool shop every month for a
complete analysis. Maintaining all chemical levels at optimum levels will result in a sparkling
clear, fresh pool.
3.2 Setting the Chemflo to OFF
The OFF setting is provided when no dosing is required. This allows the chemical drum to be
changed without stopping the main Pool Pump.
1. To set the Chemflo to OFF and stop all dosing, turn the control fully counter clockwise. The
display will show the setting “ ”
2. This mode should not be selected for normal operation. The OFF mode should only be
used to stop the dosing pump operating, such as when refilling chemical drums. Long
term use of this mode will make your pool unfit for swimming.
3.3 Setting the Chemflo to FULL
The FULL setting operates the dosing pump continuously at full speed. The litres per hour of the
FULL dose setting are shown in the table at the end of this section.
To set the Chemflo to FULL dose continuously at full speed, turn the control fully clockwise. The
display will show the setting “ ”.
1. This mode should not be selected for normal operation. The FULL mode should only be
used for short-term operations such as Super-Chlorinating. Long term use of this mode
will make your pool unfit for swimming, and could present a serious threat to health or
equipment.

Section 3 – Operating Instructions
10
3.4 Chemflo Flow Rates
The flow rate of the Chemflo is varied using a duty cycle, so for most of the time the pump does
not operate. For example, the pump will be ON for 2.5 minutes per 15 minute cycle when it is set to
99. When the unit is set to 50, the pump will be ON for half the time, i.e. 1.25 minutes per 15
minute cycle. Refer to the table below.
The only time that the pump operates continuously is when the control is set to FULL.
Flow Rates of Dosing Pump when control set to 99
Tube Size Rate per Hour Rate per Day 8 hrs* Duty Cycle
Small Tube 300 mL/Hr 2400 mL/Day 2.5 mins ON per 15 mins
Large Tube 1000 mL/Hr 8000 mL/Day 2.5 mins ON per 15 mins
* Based on 8 hour pump operation for each day.
Flow Rates of Dosing Pump when control set to FULL
Small Tube 1.8 L/hr
Large Tube 6.1 L/Hr
Flow rates were measured pumping into a pool line at 50 kPa.

Section 4 – Peristaltic Dosing Pump
11
Section 4. – Peristaltic Dosing Pump
4.1 Lubricating the Pump Tubing
The Chemflo is shipped with the correct lubrication on the peristaltic pump tubing. If this lubrication
needs to be re-applied, suitable Silicon lubricant is available from your dealer in a 3mL syringe
(part no 130103).
To lubricate the pump tubing…
1. Remove the pump tubing, as per the details in section 4.2, below.
2. Smear a small quantity of Silicon grease all around the tube. A thin film is all that is required.
DO NOT use petroleum based oil or lubricants, as these will cause the Santoprene rubber to
perish. Use only Silicon based lubricant.
4.2 Replacing the Pump Tubing
Replace the Pump Tubing if it gets worn, begins to leak, or pumping volume is reduced. The Pump
Tubing is available from your dealer: part No. 116353 for the Small Tube or part No. 116352 for the
Large Tube.
To remove the old Pump Tube…
234
1
IMPORTANT
Place the pump suction
tubing into a bucket of
fresh water. Prime the
pump by setting the
Dose Rate to FULL.
This may take up to 2
minutes. This ensures
that there are no
dangerous chemicals in
the tubes when they are
disconnected.
Switch off the power and
disconnect the power
cord from the mains
power outlet.
Remove the Input and
Output tubing from the
compression fittings.
This is simply a reversal
of the procedure
detailed in section 2.3.
Remove the see-
through cover on the
front of the pump.
5Turn the roller holder so that the rollers are in a horizontal line. Pull the left
hand side compression fitting from its seat. Begin turning the roller holder
clockwise, so that the roller holder acts as a lever which pulls the pump tube
out as it turns. After approximately 3/4 of a turn, the right hand side
compression fitting can be pulled out.
The old pump tube has now been removed.

Section 4 – Peristaltic Dosing Pump
12
To fit a new Pump Tube…
234
1
Turn the roller holder so
that the rollers are in a
horizontal line. Push the
left hand side
compression fitting into
its seat, round side
facing in. Begin turning
the roller holder
clockwise, so that the
roller holder acts as a
lever which pulls the
pump tube in as it turns.
After approximately 3/4
of a turn, the right hand
side compression fitting
can be pushed in, round
side facing in.
The new pump tube has
now been fitted.
Replace the see-through
cover on the front of the
pump. This is essential
to protect the rollers and
tube from dirt and
moisture.
Re-fit the Input and
Output tubing to the
compression fittings.
See the procedure
detailed in section 2.3.
The power to the
Chemflo can now be
re-connected and
switched on.

Section 5 – Troubleshooting
13
Section 5. – Troubleshooting
Symptom Possible Causes Remedy
Main Pool Pump does
not operate when
plugged into Chemflo
piggy-back plug
1. Pool Pump power lead not
fully inserted into piggy-
back plug.
2. Chemflo or Pool Pump
power plug faulty.
3. Pool Pump Faulty
Ensure that the Pool Pump’s power
plug is firmly pushed into the piggy-
back plug.
Have a qualified electrician check the
Chemflo and/or Pool Pump power
plugs.
Contact supplier of Pool Pump for
service or replacement.
Display does not light
up when power is
connected
1. Power plug is not fully
inserted into mains power
outlet, or outlet is switched
off.
2. Chemflo is faulty.
Ensure that the power plug is firmly
pushed into the power outlet and that
the outlet is switched on.
Return to Dealer for repair.
Unit appears to be
operating correctly, but
chemical is not being
dosed into pool
1. Peristaltic pump tubing is
worn.
Replace pump tubing as per details in
section 4.2.

Section 6 – Warranty
14
Section 6. – Warranty
Warranty Terms and Conditions
PLEASE READ
1. These terms and conditions carefully, as failure to comply may affect your legal rights under this
warranty; and
Any installation and operation instructions carefully before commencing use of any product
manufactured by Waterco Limited (“Waterco”).
2. Waterco manufactures quality pool and spa products to the highest standards using the most
advanced technology and production procedures available.
WARRANTY COVER
If a defect occurs in any Waterco product, Waterco will at its discretion, repair the product or replace and
install the defective part, free of charge provided that the defect results solely from poor workmanship
or materials and subject to these terms and conditions.
Labour is covered by this warranty for a period of 12 months from the date of purchase or installation,
within a 25 km radius of an authorized Waterco Service Agent.
The purchaser is responsible for any freight incurred.
WARRANTY PERIOD
All products sold by Waterco are covered by a one year warranty. The exceptions to this are the
products listed in the schedule (which also specifies relevant warranty periods). All warranty periods
commence on the date of purchase by the end user.
The provisions of this warranty are not transferable and are in addition to and not in modification of or
subtraction from any applicable statutory warranties, rights or remedies.
CONDITIONS OF WARRANTY
This warranty only applies where:
1. The products have been installed and operated in accordance with written instructions supplied by
Waterco;
2. The purchaser is able to provide proof of purchase that specifies the date of purchase;
3. The product has been serviced or maintained regularly. (at least once a month).
Any pool and spa equipment has been used in water:
1. With a temperature not exceeding 40 degrees Celsius;
2. With a pH range maintained between 7.2 – 7.6;
3. That has been chemically balanced in accordance with the Langelier saturation index within a range of -
0.2 to + 0.2 to ensure that it is not corrosive or scale forming;
4. That is not salt water (other than mild saline water conditions which are compatible with swimming
pool salt water chlorination systems) – unless otherwise stated by Waterco in both the respective
product labels and brochures that it is suitable for seawater applications; and
5. That has been regularly treated with a sanitizing system using bromine, chlorine in one of its
compound forms, or generated in-situ, in concentrations (doses) recommended by the relative
state or territory health departments. (In areas outside of Australia please refer to the local health
department recommendations before use);

Section 6 – Warranty
15
Pressure gauges have not been exposed to frosting and freezing conditions and due care has been
exercised when attaching them to any Waterco products;
Electrical equipment has been adequately protected from salt air environments and from salt water; and
Any pump used on a filter does not have a shut-off head that exceeds the pressure rating of the filter
installed.
All repairs and replacements shall be carried out by Waterco or its authorized service dealer, unless
otherwise authorized in writing by Waterco.
If an authorized service dealer is not available within 25 km of the purchaser’s area:
• The purchaser must contact the place of purchase or Waterco for further instructions and;
• The purchaser is responsible for any freight or infield labour costs.
EXCLUSIONS
This warranty does not cover, and Waterco will not be responsible for, any defect or damage caused
or contributed to by:
(a) installation or use of the product other than in accordance with Waterco’s written
instructions, any statutory requirements and these terms and conditions;
(b) use of the product for a purpose other than for which it was designed or sold;
(c) abuse, misuse, corrosion, internal and external, or normal wear and tear;
(d) any repairs or modifications whatsoever carried out by any person, other than a
Waterco authorized service dealer;
(e) exposure to water not caused by a defect in the product; and
(f) transit of the product over which Waterco has no control.
(g) inadequate ventilation
(h) cement, pebbles, render or other pool surface finishes blocking the pump’s impeller
(i) insect infestation
Some three phase pumps are not supplied with thermal overload protection. It is the purchaser’s
responsibility to have this provision installed by appropriately licensed electricians prior to the initial
installation of the pump. All electrical work must comply with any appropriate statutory requirements.
Warranty for installation of thermal overload protection is the sole responsibility of the licensed electrical
contractor and not Waterco.
Waterco excludes all liability it may have to the purchaser for indirect, special or consequential loss
arising from or related to any defect in any Waterco product, or any act or omission of Waterco, including,
but not limited to, loss of business, loss of profit, loss of revenue, lost opportunity, inconvenience, and
damage to any property other than the Waterco product.
Waterco excludes all other conditions, warranties, liabilities or representations which might, but for
these terms and conditions, be implied by law or otherwise. These terms and conditions do not exclude
or modify any implied condition or warranty, or any liability imposed on Waterco by any law (including
the Trade Practices Act), if to do so would contravene that law or make any part of these terms and
conditions void.
To the extent permitted by law, Waterco excludes all conditions and warranties implied into these terms
and conditions and limits its liability for breach of any such condition or warranty that it cannot exclude
to the greater of (at Waterco’s option);
(a) for goods:
• Repairing or replacing those goods; or
• Paying the cost of having those goods repaired or replaced; and
(b) for services:
• Resupplying the services; or
• Paying the cost of having those services resupplied.

Section 6 – Warranty
16
GENERAL
The chemical balance of the water is a relationship between total alkalinity, pH, Calcium hardness
and temperature. Waterco recommends that you have your water tested regularly by your local pool
professional. A record of testing should always be kept for reference.
Some jurisdictions do not allow the exclusion or limitation of incidental or consequential damages, so
any such limitation may not apply.
This warranty gives specific legal rights. The purchaser may have other rights depending on the
jurisdiction in which the Waterco product was purchased or the purchaser is located.
SCHEDULE WARRANTY PERIODS
Residential Applications:
Controller / Feeder 2 years
Sensor 18 months
Labour 1 year
Commercial Applications:
Controller / Feeder 1 year
Sensor 1 year
Labour 1 year
WARRANTY LIMITATIONS:
The provisions of this warranty are not transferable from the original purchaser and are in addition to
and not in modification of or subtraction from any applicable statutory warranties, rights or remedies.
Labour is covered by this warranty for a period of 12 months from the date of purchase or installation,
within a 25 km radius of an authorized Waterco Service Agent.
Spare parts used in the repair of products are covered by a 12 month warranty and are not covered by
the original warranty from date of purchase or installation.
The purchaser is responsible for any freight incurred.
Rainbow Pool Products
PO Box 2388, Mansfield Qld 4122
Telephone STD 61-7-3849 5385
Facsimile STD 61-7-3849 5384
Email: [email protected]
Web: www.rainbowpoolproducts.com.au